Pedestal-table lock.



No. 754,196. PATENTED MARI-,8, 1904 q. s. BURTON,

PEDESTAL TABLE LOCK.

APPLIUATIORFILBD NOV. 13, 1903. N0 MODEL. h A; 2 SHEETS B HEET 1.

EHIIH Ill i m-m No. 754,196. g 'PATENTED MAR. a, 1904. v

0. s. BURTON.

PEDESTALTABLE LOOK. APPLICATION FILED NQY.13', 1908. N0 MODEL. 2 SHEETS-SHEET 2.

UNITED STATES Patented March 8, 1 904.

' PATENT OFFIQE.

CHARLES S. BURTON. OF OAKPARK, ILLINOIS,,ASSIGNOR TO EMIL TYDEN, OF HASTINGS, MICHIGAN.

PE DESTAL-TABLE LOCK.

- SPECIFIGATTON' forming part of Letters jPatent No. 754,196, dated March 8, 1904.

Application filed November 13,1903. Serial No. 180,988. (No model.)

To all whom it may concern.-

Be it known that I, CHARLES S. BURTON a citizen of the United States, residing at Oakpark, in the county tal table-locking devices designed for the purpose of drawing and holding together the two separable and providing for theii release and separation for extending the table.

It'consists in the features of set out in the claims. Y v

In the drawings, Figure 1 is a longitudinal construction section of a portion ofan extension-table having my improvements, sect on being made axially with respect to the pedestal transverse to the plane of parting and showing the parts in position occupied when the table is nearly closed up and ready to be operated by means of the devices for complete closing, but before being thus operated. Fig. 2 is a detail section similar to. Fig. 1, showing the parts in locked position. 'Fig. 3 is a section at the line Fig. 4 is a section at the line lock-operating devices, section being made at fied construction.

the same plane'asin Fig. 1 through one member of the table and the upper portion of the pedestal member pertaining thereto. Fig. 6 is a view similar to Fig. 1, showing a modi- Fig. 7 is a section at the line 7 7 on Fig. 6. Fig.8isadetail plan view of the operating parts at the top as seen looking down at the plane indicatedby the line '8 8onFig.6.

"Two members 1 and 2 of the table haverigid with them, respectively, two pedestal mem-' bers 3, and 4, provided with the customary slides 5 and bridging 6. 7 is a vertically-disposed lever mounted in the pedestal member 4,having a sliding pivotal connection therewith at the lower end, which is conveniently provided by terminatof Cook and State of Illinois, have invented new and useful Improvements in Pedestal-Table Locks, of which theparts of a pedestal extension-table shown at 1 5, pivo ing the lever in a spindle 8 and providing an eye through which it plays in the horizontal 'brack'etarm 9, mounted on the pedestal. The

lever 7 extends up through the pedestal mem-.

her and protruding above the bridging has connected to its upper end a draft-link or pullrod 10, which is operated byacramping-lever 11, which is rocked over its fulcrum on the table member from a position shown in Fig. 1, at-which the vertically-disposed lever is held over toward the parting plane of the pedestal members for unlocking, to a position shown in Fig. 2, at which said vertically-disposed lever is pulled in toward the outer wall ofthe pedes tal and is held locked in that position by the line of pull of the link 10 on the lever 11, beingabove stopped against further upward movement. A. latch 12' is carried by the pedestal member fied is preferably pivoted .to' said "member, though for themere purposes of locking and unlocking it may operate as rigid. When 3 and for a certain purpose hereinafter speci-J pivoted, as shown, it is provided with any convenient means, as the tail or finger 12, for.

checking itagainst falling below the position at which it .is shown in Fig.-1-that is, substantially 'or approximately.horizontal, with its engaging nose 13 above the level of an engaging device 14, with which the lever 7 is provided for the engagement of the latch. In

the structure shown and preferred for sim-' plicity this engaging device is a mere stud or bolt rigid with the lever-.-7.-standing in horizontal position for engaging with'the latchnose. The latch 7 beside its connection'with the link 10 for swinging it back and forth ling-link to the member of the table on which it is mopnted. Inthe construction shown in the principal fig'ires this controlling-link is d at thetop of the pedestal member 4 and trending a littleupward from its pivot to its pivotal connection at the pivotal .overits' fulcrum is connectedby a Control- 4 connection of the draft-link or pull-rodlO with the {lever when the'latteris in unlocked posi;

tion, asseen in Fig. 1. In this construction the outward pull of the link 10 for locking causes the lever to be first lifted morethan 65, the fulcrum of said lever, the latter being it is moved outward, carrying thestud or bolt 1% up into the engaging angle of the latch---. that is. behind the nose 10. The farther swinging of the link 15 as the pullrod or link 10 is drawn outward may slightly lift the latch or cause the stud to pass a little farther up on the inner side of the nose of the latch, but chiefly will cause the latch to be drawn over horizontally with the lever 7 as the latter swings back toward the wall of the pedcstal member 3, thus drawing the two pedestal members positively together and closing up the pedestal at the bottom by the time that movement is completed, this result happening whether the table members cometogether at the top earlier or later than the pedestal members at the bottom,whichever end is closed first becoming the fulcrum about which the two members rock as they come together at the other end.

In-the modification shown in Fig. 5 instead of thelink 15 there is employed a link 15, hung from the table-top and pivotally connected to the pull-rod 10,so as to suspend it, the link 15 hanging vertical when the lever 11 is at the position shown in Fig. 1that is, at unlocked position of the parts. When the lever 11 is operated for locking, its pivot to the pull-rod 10 moves first downward, while the pivot of the link 15 moves upward, thus doubly tending to cause the end oi the pullrod 10, which is pivoted to the upper end of the lever 7,-to move upward, and thus lift the lever upward to bring the stud M into engagement with the latch, as in the other form of the device. From the point at which the lever 11 stands vertical that is, with its pivot to the pull-rod 10 directly below the fulcrum of said lever--to the point at which said lever 11 is in locked position the pivotal connections of the pull-rod 10 both to the link 15 and with said lever 11 are movingupward, and said parts may be proportioned so that during this movement there is no material change in the vertical position of the pivot of the pull-rod 10 to the lever 7 .and so that, therefore, this portion of the movement operates merely to swing the lever 7 back toward the vertical wall of the pedestal for drawing the two members of the table togcther.

The leading feature of my invention is adapted to be applied to a construction in which the movement of the lever for engaging the latch 01 any equivalent device with which the opposite pedestal memberis provided may be sideward instead of up and down-"that is, the

, guiding orcontrolling link may be pivoted to swing horizontally instead of vertically. Such construction is illustrated in Figs. 6, 7 and 8,

in which the vertically-disposed lever '4 has a pedestal, so as to swing horizontally, carrying the upper end of the lever which engages it i chiefly laterally in the first part of the locking l movement and aftm'ward chiefly outwardly--- that. is, away from the parting plane -"the latl eral mgn'ement bringing the lever into engagement with the hook or nose 13 of the latch 12, which is pivoted to the opposite pedestal member, so as to swing horizontally, and is bent or deflected, so as to avoid the center leg in swinging to locked position, while at unlocked position its hooked end ornose is out of the path of the leg in the closing movement of the table. The pull-rod 10 may be connected indifferent-1y to the link or to the upper end of the lever. As illustrated, the end of the lever protrudes through the link and becomes itself the pivot for connection to the link of the pull-rod, which is directly connected pivotally to the protruding end of the lever. In this form the latch is held in unlocked position by a spring 16, and in this position'its nose is out of the path of the lever when the lever is in position for locking, so that if inad vertently the cramping-lever '7 has been operated for locking .before the table members are closed together no collision will occur between the vertical-lever and the latch.

I claim 1. A. pedestal-table-locking device comprising, in combination with the table members and the pedestal members pertaining thereto respectively, a vertically'disposed lever hav ing a pivotal connection with one pedestal member adapted to permit it to move in more means for rocking the lever about its said pivotal connection toward and from the parting plane of the table members; a controlling device connecting the lever to the table for causing it to move at the point of such connection in a different direction, when it is thus moved toward and from the parting plane; means for rocking and securing said lever, and means on the opposite pedestal member for engaging it.

2. A pedestal-table-locking. device comprising, in combination with the table members and the pedestal members pertaining thereto respectively, a vertically-disposed lever fulcrumed on one table member, with capacity for rocking in more than one direction about its fulcrum; a link which. connects the lever to the same table member on which it is fulcrumed at-a point remote from said fulcrum; means stopping the lever at a position at which said link trends from its pivot to the rection approxii'nately at right angles to the lever; means for rocking the lever toward and from the parting plane of the table members. and for releasably securing it at the position to which it may be thus rocked in one direction, and means on the opposite pedestal member for engaging the lever.

3. A pedcstal-tal; le-locking device compristhan one direction about such'connection;

table member to its pivot to the lever in adi ing, in combination with the table members and the pedestal members pertaining thereto respectively, a vertically-disposed lever mounted-on one pedestal member, pivotally connected to said member with capacity for longitudinal movement; a"controlling device connected to the table member for causing it to move longitudinally when it is moved to ward and from the parting plane of the two members; an engaging device carried by the opposite pedestal member; means on the lever for engaging said device, and means'for iocking and securing the vertically-disposed ever.

4. A pedestal-table-locking device comprising, invcombination with the table members and the'pedestal members pertaining thereto respectively, a vertically-disposed lever pivotally mounted on one. pedestal member, with capacity for longitudinal movement; a link which forms a second connection ofthe lever to said member; means for stopping the lever at one limit of its longitudinal movement at a position at which the link trends from its pivot to the table member approximately horizontal to its pivotal connection with the lever; means for rocking the link away-from 'the horizontal plane of its said pivot, and for releasably securing it at the position to which it may be thus rocked, and means on the opposite pedestal member for engagingthe lever.

5. A pedestal-table-locking device comprising, in combination with the table members and the pedestal. members pertaining thereto respectively, a vertically disposed lever mounted on one pedestal member, having moving pivotal connection therewith at the lower part permitting longitudinal movement; a controlling device connecting the lever to the table members forcausing it to move upward when it is moved back from the parting plane; a latch carried by the opposite pedestal member; means on the lever for engaging the latch and means for rocking and securing the vertically-disposed lever and securing it at position remote from said parting plane.

6. A pedestal-table-locking device comprising, in combination with the table members andthe pedestal members pertaining thereto respectively, a vertically -disposed lever mounted on one pedestal member, having connection with said member at two points in its length; a link which constitutes one of said connections, the other connection being adapted to permit longitudinal movement of the lever; means for stopping the lever in its downward movement at a position at which said link trends from its pivot to thc table member inward to its pivotal connection with the lever: means for rocking the link upward and outward about its pivot to the table member, and for releasably securing it at the position to which it may be thus rocked, and means on the opposite pedestal member for engaging the lever.

- 7, Apedestal-table-locking device comprising, in combination with the table members and the pedestal members pertaining thereto respectively, a vertically-disposed lever mounted on one pedestal member, said lever and the opposite pedestal member being pro-Y vided with mutually-engaging devices, the lever being movable longitudinally at its fulcrum connection with the member upon which it is mounted; a controlling device connectingit to said table memberat a point remote from its fulcrum connection adapted for causing it to move upward when it'is movedback from the parting plane of the two members, and means for rocking the lever about its fulcrum and releasably securing it at a position remote from said parting plane. a

8. A pedestal-table-locking device comprising, in combination with the table members and, the pedestal members pertaining thereto respectively, a vertically-disposed lever mounted on one pedestal member; means for rocking the lever about its fulcrum toward and from-the parting plane of the table members, the fulcrum connection of the lever being adapted to permit it to receive an additional movement beside its movement toward and from the parting plane; a controlling device connecting the'lever withthe table member at a point remote from its fulcrum for causing such additional movement when it is rocked toward and from the parting plane, and a device on the opposite pedestal memher into and out of engagement with which the lever is carried in the movement caused by said controlling device.

9. A pedestal-table-locking device comprising, in combination'with the table membersmounted on one pedestal member; means for rocking the lever about its fulcrum toward and from the parting plane of the table members, the fulcrum connection of the lever being adapted to permit it to receive an additional movement in a difierent direction; a controlling device for guiding the lever in such additional movement; means on the opposite pedestal member for engaging the lever adapted to be engaged thereby in such additional movement of the lever, one of the two parts which cooperate in such engagement being adapted to yield upon encounter with the other for effecting such engagement automatically when the encounter occurs after .the lever has made suclradditional movement.

10. A pedestal tablelocking device comprising in combination with the table members,

and the pedestal members pertaining thereto respectively, a vertically-disposed lever mounted on one pedestal member; a link or pull-rod for rocking the lever about its fulcrum toward and from the parting plane of the table members,'the fulcrum connection of member which carries the lever and pivotally connected to the pull-rod for controlling the movement of the latter and the lever to give the lever such additional movement, and

means on the opposite pedestal member for engaging with the lever, adapted to be engaged thereby in such additional movement of the lever.

11. A pedestal-table-locking device, comprising in combination with the table members and the pedestal members pertaining thereto respectively; a verticallydisposed lever mounted on one pedestal member; a link or pull-rod for rocking the lever about its fulcrum toward. and from the parting plane of the table members, the fulcrum connection of the lever being adapted to permit it to receive an additional movement in a different direction; a linkpivotally connected to the lever same pedestal member on which thelevcr is mounted, trending from its said fulcrum to its connection with the pivot of the lever and pull-rod when the parts are at unlocked position, in a direction approximatelytransverse to the partingplane of the pedestal members and adapted to swing about its fulcrum from that position in the directionof said additional movement of the lever. r

In testimony whereof I have hereunto set my hand, in the presence of two witnesses, at Chicago, Illinois, this 10th day of November, 1903.

CHARLES S. BURTON. v In presence of FREDK. G. Frsonnn, M. G. ADY. 

